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ECE :: Digital Electronics

Digital Electronics - Section 1
Digital Electronics - Section 2
Digital Electronics - Section 3
Digital Electronics - Section 4
Digital Electronics - Section 5
Digital Electronics - Section 6
Digital Electronics - Section 7
Digital Electronics - Section 8
Digital Electronics - Section 9
Digital Electronics - Section 10
Digital Electronics - Section 11
Digital Electronics - Section 12
Digital Electronics - Section 13
Digital Electronics - Section 14
Digital Electronics - Section 15
Digital Electronics - Section 16
Digital Electronics - Section 17
Digital Electronics - Section 18
Digital Electronics - Section 19
Digital Electronics - Section 20
Digital Electronics - Section 21
Digital Electronics - Section 22
Digital Electronics - Section 23
Digital Electronics - Section 24
Digital Electronics - section-25
Digital Electronics - Section-26

  1. Bit is

    2. A.
    smallest piece of electronic hardware
    B.
    a drilling tool
    C.
    an abbreviation for binary digit
    D.
    the smallest number

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  2. Consider the following two
    Statements 1: stable multivibrator can be used for generating square wave.
    Statements 2 : stable multivibrator can be used for storing binary information.

    3. A.
    only statement 1 is correct
    B.
    only statement 2 is correct
    C.
    both statements are correct
    D.
    both the statements 1 and 2 are not correct

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  3. Which of the following flip flops cannot be converted to D flip flop?

    4. A.
    JK
    B.
    SR
    C.
    Master slave
    D.
    None of the above

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  4. In 8086 microprocessor, if the segment register contains 1 FAB and IP register contains 10AI, the effective memory address is

    5. A.
    20B51
    B.
    304C
    C.
    FBC0
    D.
    FDB5

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  5. The recently-introduces CD-ROM PC by Head Start Technologies Co. of New York enables users to view or play __________ .

    6. A.
    vast amounts of text
    B.
    graphics
    C.
    music
    D.
    all of the above

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  6. In 8085 microprocessor, what is the length of A-register?

    7. A.
    6 bits
    B.
    8 bits
    C.
    12 bits
    D.
    16 bits

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  7. How is inversion achieved using EX-OR gate?

    8. A.
    Giving input signal to the two input lines of the gate tied together
    B.
    Giving input to one input line and logic one to the other line
    C.
    Giving input to one input line and logic one to the other line
    D.
    Inversion cannot be achieved using EX-OR gate

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  8. For the DAC in the given figure VO=

    9. A.
    10 V
    B.
    5 V
    C.
    4 V
    D.
    8 V

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  9. The difference between sequential and combinational circuits is

    10. A.
    Combinational circuits store bits
    B.
    Combinational circuits have memory
    C.
    Sequential circuits store bits
    D.
    Sequential circuits have memory

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  10. A universal shift register can shift left or right.

    11. A.
    True
    B.
    False

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